create new uv-mapping on UV channel #3, using Edit UV tool in Front/Side/Top viewports with "Generate New" + "From viewport XY" options. select side polygons and create them UV in side view, select cabin top and hood top and create mapping in top view, etc.

Note, if you use UV#2 for arranging truck template, you have to follow standard truck layout template (found in vehicle/truck/upgrade/materials/matching_pattern.dds). This will allow you truck to be skinned into default paint skin too. your own layout on UV3 can be an additional, so your truck can support original skin template and a custom-layout template.

Oleg wrote:create new uv-mapping on UV channel #3, using Edit UV tool in Front/Side/Top viewports with "Generate New" + "From viewport XY" options. select side polygons and create them UV in side view, select cabin top and hood top and create mapping in top view, etc.

Note, if you use UV#2 for arranging truck template, you have to follow standard truck layout template (found in vehicle/truck/upgrade/materials/matching_pattern.dds). This will allow you truck to be skinned into default paint skin too. your own layout on UV3 can be an additional, so your truck can support original skin template and a custom-layout template.

this isn't understandable for me. I don't know what's to do.matching_pattern.dds isn't avaiable in the downloaded truck, i chanced.